Документ в канвасе

src/Canvas.zig

@@ -4,28 +4,27 @@ const dvui = @import("dvui");
 const Document = @import("models/Document.zig");
 const RenderEngine = @import("render/RenderEngine.zig").RenderEngine;
 const ImageRect = @import("models/basic_models.zig").ImageRect;
-const Size = dvui.Size;
 const Color = dvui.Color;
 
 const Canvas = @This();
 
 allocator: std.mem.Allocator,
+document: *Document,
+render_engine: RenderEngine,
 texture: ?dvui.Texture = null,
-size: Size = .{ .w = 800, .h = 600 },
-pos: dvui.Point = dvui.Point{ .x = 0, .y = 0 },
+pos: dvui.Point = dvui.Point{ .x = 400, .y = 400 },
 scroll: dvui.ScrollInfo = .{
     .vertical = .auto,
     .horizontal = .auto,
 },
 native_scaling: bool = true,
-document: ?*Document = null,
-render_engine: RenderEngine,
 _visible_rect: ?ImageRect = null,
 _zoom: f32 = 1,
 
-pub fn init(allocator: std.mem.Allocator, engine: RenderEngine) Canvas {
+pub fn init(allocator: std.mem.Allocator, document: *Document, engine: RenderEngine) Canvas {
     return .{
         .allocator = allocator,
+        .document = document,
         .render_engine = engine,
     };
 }
@@ -79,11 +78,12 @@ pub fn addZoom(self: *Canvas, value: f32) void {
 }
 
 pub fn getScaledImageSize(self: Canvas) ImageRect {
+    const doc = self.document;
     return .{
         .x = @intFromFloat(self.pos.x),
         .y = @intFromFloat(self.pos.y),
-        .w = @intFromFloat(self.size.w * self._zoom),
-        .h = @intFromFloat(self.size.h * self._zoom),
+        .w = @intFromFloat(doc.size.width * self._zoom),
+        .h = @intFromFloat(doc.size.height * self._zoom),
     };
 }